from wiki:
On November 17, 2010, the team announced that Oden would have microfracture surgery on his left knee, ending his 2010–2011 season.[15] The injury marked Oden's third NBA season cut short due to a knee injury.

On December 9, 2011, the Trail Blazers announced that Oden had suffered an unspecified "setback" that left them less optimistic about his ability to play in the 2011–2012 season. Rather than signing an 8.9-million-dollar qualifying offer, Oden and the team negotiated a different offer.[16] On February 3, 2012, Oden underwent arthroscopic surgery on his right knee.[17] On February 20, 2012, Oden was scheduled for a procedure on his left knee similar to the procedure he underwent 17 days earlier. However, during the operation, further damage to the articular cartilage was discovered, and Oden underwent his third micro-fracture surgery.[18] On March 15, 2012, Oden was waived by the Blazers to create room on the roster for trade acquisitions.[19]

By playing 82 games in his entire career so far, he has effectively played one full NBA season over the span of five seasons from 2007 to 2012.
Current status

In May 2012, Oden announced his intention to sit out the 2012–13 season to focus on rehabbing his injuries.[20]

bogut is experiencing swelling in his ankle after workouts. i would guess after that is running. after that is anyone's guess. bogut's injury is less severe because it's the ankle and not the knee? who knows?